Wheat-stackek



0. P. WENTWORTH.

WHEAT STACKER. APrucmon msn MAnza. ma.

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0. P. WENTWORTH.

WHEAT sTAcKER. APPLICATION FILI-ID MAR. 23| 1918.

Patented June 17, 1919.

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0. P. WENTWOHH.

WHEAT STACKER.

APPLICATION FILED MAH. 23| 1918.

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Srl/vento@ Patented June 17, 1919.

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OLIVER. P. WENTWORTH, OF FOIRiGrAN,Y OKLAHOMA.

WHEAT-srrioxnn.

Specification o f LettersiPatent. Patented Juin@ 1W, 1919.

Application filed March 2.3, 1918. Serial No. 224,271.

To all whom, z't may Concern:

Be it known that I, Onivnn P. WnNTwon'rri,

a citizen of the United States, residing at F organ, in the county ofIBeaver and State of Oklahoma, have invented certain new and usefulImprovements in lVheat-Stackers, of which the following is aspeciiicationfreference being had to the accompanying draw ings.` A fThis invention relates to straw staclrers, and particularly to straws'tackers which are used for transferring wheat from a` barge toa'stack. v

The general object` of the inventionisto provide a stacker of thischaracter of a very simple form and which is positively con trolled atall times, and ,whichl is Vso constructed that the sling on a bargemaybe lifted and discharged into a lifting and diunping'rack and inwhich'theracks may then be lifted and dumped onto a stack.y

One of the objects of the invention is to` provide means whereby thewheat or other grain for threshing may be lifted vertically and thendischarged onto *the stack, so as to permit a vertical stack to bebuilt.

A further object of this inventionis to? provide a construction of thischaracter which will operate at'the side of the stack and which may beshifted parallel to the stack at will so as to `operate in connectionwith a stack of any desired lengthl or, in other words, to build a stackof any desired length.

Still another object isl to provide a ma chine of this characterincluding a receiving and discharging rack, and provide means wherebytherack may be hoisted to a predetermined height and then dumpedautomatically, and in this connection toi provide means whereby thedumping of the rack may be controlled so that any amount of wheat may bedischarged at any desired time, the dumping rack being under positivecontrol at any point.

4Another object is to provide means whcrefy bythe slings of a barge maybe engaged and raised and carried into a position where the sling may bedumped into the rack', and`provide means whereby the sling may bereturned to its position over the barge and returned to the barge.

Still another object is to provide 4improved means whereby vthe hoistingand dumping machine may be held fromloverturning un- Other objects willappear in the course 'of the following description.

My invention is illustrated in the accompanying drawings, wherein: 1Figure. 1 is a front elevation of a hay stacker constructed inaccordance with my invention; Y p

Fig'. 2 is a top' plan view of the construction shown in Fig. 1; f

Figs.v 3 and t are end elevations of the machine shown in Figs. 1 and 2but on an enlarged scale and showing the rack in its receiving and inits dumping positions;

Fig. 5 is a fragmentary side elevation ofv the lower portion of one pairof uprights 13 showing in full lines the slide Ain a lowered positionand in dotted lines the slide in' a raised position to its full extent;

Fig. 6 is a fragmentary vertical sectional view on the line 6--6 of Fig.`5 but on a smaller scale; i Fig. 7 is a fragmentary top plan viewshowing the connection ofv the brace 17 to the uprights;

Fig. 8 is a sectional ,view on the line 8-#8 of Fig. 7;

Fig. 9 is a diagrammatic view showing the cable for holding the machineto the ground and its engagement with the machine; and

Fig. 10 is an end viewof one of the drums and its brake. i

Referring to the drawings, it will be seen that my machine includesabase, preferably composed of longitudinal beams 10 and transverse beams11, these beams being bolted together and being preferablysup-- n portedon wheels 12. Attached to the inner pair of transverse beams 1l andextending upward therefrom are the vertical supports and guides 13,there being two of these vertical supports and guides at each end of themachine, each. pair of these guides being spaced a relatively shortdistance from each other and being formed on their confronting faceswith guide grooves 14. The beams 13 are separated at their upper ends bymeans of a sleeve 15 and passing through this sleeve and the upriglits13is a bolt 16, to which the brace 17 is operatively connected, thisbrace extending downward and laterally at an inclination and beingengaged with converging end braces 1S which are bolted or otherwiseattached tothe longif b tudinal beams 1() of the machine. Theuptransverse downwardly and forwardly Vinclined rails 20 which arebolted to the uprights and at their rear ends are bolted to uprights21,. The forward ends of these rails 20 are connected by means of alongitudinally extending rail 22. Posts 23 are attached to one of thelongitudinal beams 10 and extend up to the lower ends of the rails 20and bassist in supporting the same.

Extending outward from each of the uprights l13 on each end of themachine are the arms 24 which at their ends are connected to upwardlyextending tension or brace rods 25 which engage with coiled` springs 26in turn engaged with the upper end of the corresponding upright 13.Preferably the arms 24 have a hinged or pivotal `connection to the.uprights 13.

tudinally extending shaftdisposed through the'beam 28 and projectingbeyond the ends of the bealn. The trunnions 30 extend into the spacebetween each pair of uprights 13.

Disposed in the guide grooves 14 of each pair of guideways or uprights13 is `a slide 31 which may be made of a plate of metal and which islongitudinally slotted as at 32. The trunnion or shaft 30 passes intothis slot 32 and has movement vertically in this s ot.

For the purpose of raising these slides 31 and raising or lowering therack and turning the rack to and froln its dumping position, I attach tothe ends of the forwardly projecting end bars 22a downwardly andrearwardly extending braces 33 which extend beyond the rearmost end barof the rack and are attached to these rearwardly extending end bars atv3 4. .A link 35 is pivotally engaged with the rearwardly extendingtermination of each brace 33 and this link extends up to and ispivotally connected with the corresponding slide 3l, as by means of thepin or bolt 36. It will thus be seen that when the rack is raised, thevertical movement of the rack will be transmitted through the links 35to the upper ends of the slides 31 and that these slides willconsequently move upward with the rack so long as the upward movement ofthe slides is not prevented, and when the upward movement of the slidesis prevented, then the trunnions 30 move upward in the slots 32 and thisupward movementacts to tip the rack in the manner illustrated in Fig. 4to discharge the load.

of the rack, the

VFor `the purpose of adjustably limiting the upward movement of theslides, I pwvidethe guides oruprights 13 with a plurality ofperforations 37 disposed at different heights and provide stop pins 38which are adjustable through any pair of these perforations and thus areadjustable at any desired height from the ground. This stop pin isdisposed inthe path of movement of the slide and when the slide reachesthe stop pin the upward movement of the slide is prevented.v A continuedupward movement of the rack however will cause the rack to pivot uponthe bolt 35a and the rack consequently will turn to a dumping positionto 'an extent determined by the amount of vertical movement given to therack after the upward movements of the slides have been prevented by thestop pins 38.

The slides 13 are raised and lowered by means of cables 39 at each endof the: rack. Each cable is attachedat 40 to the upper end of one of theuprights at that end, then extends downward and passes through a pulley41 attached to the end of the beam 28, then extends upward and passesover a pulley 42, and thenagain downward and passes over a pulley 43,from which it extends to a winding drum 44 mounted upon a shaft 45. Thiswinding drum may be of any suitable construction and may he operated inany suitable manner. seen that when the winding drum is rotated in onedirection, the rack with the slides 31 will be raised and that when theupward movement ofthe slides has been stopped by engagementwith theypins 38, the pull on the cables 39 will cause a still further upwardmovement of the rack and that through the links 35 and braces 33the rackwill be dumped as heretofore described.

For the purpose of holding` the slides 31 from rearward movement whenthey have struck the pins 38, I mount upon each slide a pair of latches46, these latches extending for a portion of their length parallel tothe slot 32 but being slightly vbowed inward and having their lower endsdeflected to engage in a series of ratchet notches 47 formed in theconfronting faces of the uprights 13. These latches 46 may beresiliently urged inward or may swing toward each other or inward bygravity. Preferably, however, they will be of resilient material andtherefore be urged toward each other so that their lower ends will `bedisposed `inward of the confronting faces of the uprights-13.`

1530.1?,84gij wedging members 49 vwill travel upwardin theslot 32andwillforce thelowerdends" of thel latches 46 `apart .so that thelower. extremities ofV these latches will .engage in the` ratchet`notches 47 inthe manner; illus-,1. trated in Fig. 5, holding the slides3.1 raised. while the rack isbeing dumped. Upon thev unwinding of theyhoisting, cables fromthe l winding ldrum 44.,` the racl; with` itsltrun-U nions will lower and the wedging members,l

49 will be also lowered until they release the, latching members 46 and;cause them toV swing inward toward each other and .out

of engagementwithA the .notches47. s0 that when the trunnions 30 reach,thelowerends mounted upon the uprights *13. so as toswing slightly in avertical'plane .and each arm carries at its extremity a pulleyl. Passinggover this pulley .i is a cableV 53 which carries at its extremity a`pulley 54. The

cable 53 passes over a pulley. mounted upon the correspondingdiagonalbraces, .and the extremity of the cable is attached to a weight l 56. fThe cable 53 carries Yat. itsiextremity.

the pulley 54 overl which `the cable52 passes,`

this cable carryingthe `hool-57 which is adapted to engage oneend ofafsling. The cable `52vv passes back .tothe. uprights 2l` through asuitable pulley and downward: and thence through any suitable `leadingpulleys to the drum 50.

With this construction `it.isi plain that I when the hooks 57 `areengaged with the ends of the hay sling,l and thecables' 52 are wound upupon..the drum 50, the

blocksA 54, will be drawn inward carrying' with them the hooks 57 so asto carry the slin-g to a position, above'the rack and` at the same timethat the weights 56 will When the sling .has-beeni discharged andthecables 52 are slackenedbe elevated.

by permitting the drum -to unwind,..the

sling to a proper position over the `barge so thatlthe under sling maybe connected to` thehools and theoperation repeated.

For the purpose of preventing an un- `wind'n'ig movement of the.drum"`44under theaction o-f the weight of `the rack; after thewdrum has beendisengaged from; the

shaft 45',` I provide aclutch in the-form of a band brake 58'whichencirclesthe drum 50 at one point, one. eiidjoffthe bandfforming thebrake being connected topa pin 5St`whilethe other; .end of thev bandis,` connected ,to

alever 59 `pivoted;intermediate its ends..`

The coiled contractile spring vtSOacts `to draw the .tweends of 'theband together and clamp the band in frictional contact with the drumunless kthe lever 59 is` operated.L The drum 44may' beo-perated in anysuitable manner,`

but;,if,the shaft l45V is a power operated shaft, the. drum `44 isloosevupon this shaft: but is connectible tothe.V shaftbyl means lofordinary clutch meclianisniwliich is released when the rack is dumped. 1l prefer,`

however, torotate .the drum .44 by means of a` cablevl wrapped aroundV aportionof the drum, which `cable maybe connected to a draft animall sothatas thedraft animal moves: away from the supporting frame, the

drum will be turned toy wind up the cable thereon.

-The drum 50 may also` be operated by means of powerappliedto theshaft45., but

I have illustrated this drum .alsoas being operated bymeans of a cable62 wound upon a vportion of` the drum extending over a pulley 63 andconnected-,to a draft element.

L donot wishto be'limfite'dThowever, toany specific means for operatingthese winding drums. The co1ledspr1ngs26 permit, a

yielding movement of i the guide rods `25I which permits the arms 24v toadjust themselves to the strain on the loable when a sling is beinglifted and hauled into position to bedumped. n

It is, of course, desirableto make the machine. of; `as light weight aspossible consistent with steadiness and inorder to prof vide foranchoring the base, ofthe machine i to the ground and yet permitting thema-V chine tol be shifted` longitudinally along a staclnl provide a`cable 64` which extendsl longitudinally over the baseof the machine andis 4anchored `at ,its ends byanchoring pegs (S5, this cable (S4fpassinglover pulleys G6- mounted 'on the frame of the machine and the cablebeing just suliiciently tight so as to permit the machine to be shiftedlongL tudinally and yet hold' thebase ofthe machine firmly upon theground .and preventing the base from tipping up when therack is dumping.i i

This stackeris designed to be constructed very largely of wood andpreferably the tendingibeam 28 which `is preferably about 16 .feet long,the lbody of the rack. beingV formed of 1by 4"` slats setalternatelyto.

each other. thus' making the rack` relatively light. The machineisapproximately 8 feet wide over lall andthe-hoisting uprights willordinarily be about 16 feet high. y

Vhfile I have illustrated certain details of v construction which Ibelieve tobe particu rack .is formed of the longitudinally exi weights5G. will act to return the hooks and"l 120V that the elements of therack may be are ranged in different ways without departing and rotatablymounted rack, means for ap;k

plying power to the rack to hoist it to a predetermined elevation, astop limiting the bodily upward movement of the rack, and means thencausing the rotation of the rack to discharge its contents.

2. A stacker comprising a base, vertiL cally disposed, longitudinallyspaced guides mounted on the base, slides carried by said guides, a rackhaving divergent sides, and trunnions rotatably mounted in the slides,the slides being provided with vertical slots into which said trunnionsextend, power oplcrated means for simultaneously raising the rack andthe slides, adjustable means for limiting the upward movement of theslides beyond a predetermined point, and means for causing the furtherupward movement of the trunnions within said slots to over*- balance therack and tip it to a discharging positiond 3. A stacker comprising abase, vertically disposed longitudinally spaced guides mounted-on thebase, slides carried by said guides, a rackhaving divergent sides, `andtrunnions rotatably mounted in the slides, the slides being providedwith vertical slots into which said trunnions extend, power operatedmeans for simultaneously raising the rack and the slides, adjustablemeans for limiting the upward movement of the slides beyond apredetermined point, means for causing the further upward movement ofthe trunnions within said slots to overhalance the rack and tip it to adischarging position, and means actuated 'by the continued upwardmovement of the trunnions for locking the slides to the guides toprevent downward movement of the slides, said means acting upon adownward movement of the trunnions in the slots to release said lockingmeans. A

4. A stacker including a vertically movable rack having divergent sides,a vertically movable' fulcrum for the rack and opera tively engaging therack to one side of the longitudinal axis thereof, means forsimultaneously raising the rack and the fulcrum, land means acting tostopthe upward move` ment ofthe fulcrum at a predetermined point butpermitting the further upward movement of the rack to thereby cause therack to tilt upon its fulcrum and discharge its contents.

5'.- A stacker including `a base, vertically disposed longitudinallyspaced guides on the. base, a rack having divergent sides disposedbetween the guides, vertically slotted slides mounted 'on the guides,the rack having trunnions' extending inte the slots ofthe slidesfandrota-table therein, said trunnions beingdisposed in the axial center ofthe rack, Vlinks pivotally connected to the upper ends of the slides,the lower ends of the links being pivotally connected to the rack at apoint rearward of the axial center of the rack, means for limiting theupwardinovement of the slides,l and mea-ns for lifting the rack with theslides until the movement of the slides is stopped and still furtherlifting i the rack to cause the rack to tilt upon the lower ends of thelinks to thereby discharge the contents thereof.

6, A stacker including" a base, vertically,

dispbsed longitudinally spaced guides on the base, a rack havingdivergent Ysides disposed between the guides, vertically slotted slidesmounted on the guides the rack having trunnions extending into the slotsof the slides and rotatable therein, said trunnions being disposed inthe axial center of the rack,- links pivotally connected to the upperends of the slides, the lower ends o f the links being pivotallyconnected to the `rack at a point rearward of the axial center of therack, means for limiting' the upward movement of the slides, means forlifting the rack with the slides until the movement of the slides isstopped and still further lifting the rack to cause the rack to tiltupon the lower ends of the links to thereby discharge the contentsthereof, latches carried by the slides and engaging with the guides, andmeans car-` ried by the trunnions of the rack for shifting said latchesinto operative position when the rack moves. upward independently of theslides and releasing said latches when the rack moves downwardindependently of the slides.

7: A stacker including a base, a pair of vertically disposed guidesmounted on the base and longitudinally spaced from each other,vertically slotted slides mounted in said guides, a rack havingdivergent sides disposed between the pairs of guides and havingtrunnions at its axial center having sliding engagement with said slots,links pivotally connected to the upper ends of the slides and pivotallyconnected to the rack rearward of the axial center thereof, cablesextending downward from the upper ends of the guides operativelyconnected to the axial center of the rack and to a vsource of powerwhereby the cables may be retracted to raise the slides and racks, andmeans for limiting the upward movement of the slides in said guides.V

8. A stacker including a base, a pair-of vertically disposed guidesmounted on the base and longitudinally spaced from each other,vertically slotted slides mounted in having trunnions at its axialcenter having sliding engagement with said slots, links pivotallyconnected to the upper ends of the slides and pivotally connected to therack rearward of the axial center thereof, cables extending downwardfrom the upper ends of the guides operatively connected to the axialcenter of the rack and to a source oi power whereby the cables may beretracted to raise the slides and racks, and means for limiting theupward movementl of the slides in said guides, and comprising pinsadjustable at different elevations through said guides and in the pathof movement of the slides.

9. A stacker including a base, vertically disposed pairs oflongitudinally spaced guides mounted upon the base, a rack havingdivergent sides disposed between the pairs of guides, longitudinallyslotted slides operatively engaging the guides, the rack havingtrunnions at its axial center passing through the slots of the slides,links pivotally connected to the upper ends of the slides and extendingdownward and rearward and pivotally connected to the rack rearward ofits axial center, adjustable means for limiting the upward movement ofthe slides, means connected to the axial center of the rack for raisingand lowering it, and means for preventing the downward movement of theslides after they have engaged said adjust*- able means comprising apair of latches disposed on the face of each slide, the lower ends ofthe latches being downwardly divergent, the guides having notches withwhich the latches engage and wedges carried by the trunnions of theracks and urging said latches apart and into said notches when thetrunnions move upwardly independently of the slide.

10. A stacker including a vertically mov able and rotatably mounted rackhaving` divergent sides, means for applying power to the rack to hoistit to a predetermined elevation7 a stop impeding the upward movement ofone side of the rack beyond a predetermined elevation, said stoppermitting the middle of the rack to continue its upward movement underthe 'action of the power applying means, to thereby rotate the rack to adumping position.

In testimony whereof I hereunto aHix my signature in the presence of twowitnesses.

OLIVER P. WENT'WORTH.

Witnesses:

GEORGE W. CosBY, F. J. CATELDIRK.

opies of this patent may be obtained for ve cents each, by addressingthe Commissioner o f Batentm? Washington, D. Q

